Improved machine for attaching ornaments to chain-links



llt-niiet glatte @met @Wire VIRGIL DRAPER, or ATTLEBOROUGH,MASSACHUSETTS, ASSIGNOR To oScAR M. DRAPER, 0F 'SAME PLACE.

' Leners Patata in. 105,054, daad July 5, 1870.

'num-oven Maenner: Pon ATTACHING- ORNAMETS To tJHAImLINKS.

The schedule referred to in these Letton Patent and making part of thelame.

To all -whom it may concern:

Be it known that I, VIRGIL DRAPER, of Attleborough, in the county ofBristol and State of Massachusetts, have invented a new and usefulImprovement in Devices for Attaching Ornamentseto' Chain Links; and I dohereby vdeclarethat the following specification, taken in connectionwith the drawing making a partof the same, is a full, clear, and exactdescription thereof. The improvement hereinafter' described resides in ameans whereby ring and band ornaments of various kinds used in themanufacturing jewelers art may, by

the operation of swaging, which gives form and charaoter to such-ornaments, be, at the same time, mechanically attached and secured tothe particular articlewhich they areintended to beautil' .In thedrawing, an apparatus is shown specially adapted for use in applying theimprovement in the ornamenting of chain-links.

Figure l is a plan.

Figure 2 s a sectional elevation.

Figure 3 exhibits, in detail, one of the part-s to be referred to.

Figure 4 shows one of thccompleted links in a chain. l f

A is a bed-block, furnished with four ear-pieces, B, in sets of two,opposite to each other, through which screw-holes are tapped, to' allowthe 'introduction of clamp-screws, O.

A steel die-block, l), is let into the center of the bed-block, anddivided into quadrants by two channels, which intersect each other atright angles, and in the line o'f'the axcs of the two sets ofcompressing screws.

The length, depth, and width of one, at least, of these channels shouldbe sullicient to receive the chain-link, or other article to beornamented, and that one ot' the channels so to be used should beprovided with a bed-die, a, as seen at iig. 2. E E are two holders forthe link to be operated on, specimens of which links are seen at lz,fig. 4, ahd are supposed to have been previously cut from sheet metal,or otherwise'matle by any of the known ways.

These holders are steel prismatic-shaped pieces, fitted to lie in one ofthe channels in the die-block D. Mortises' are cut in their ends, equal,in their aggregate depth, to the length of the link, less the thicknessof the'ring or bar ornament, and so that, when the ring omament which isto be swaged has been placed in its intended position on the link, theends of the holders E E shall abut against the sidesfof the blankl forthe ornament, and act as die-faces when the swaging operation isperformed.

The link having beenentered into the mortise of one ofthe holders,haring previously prepared, and which is the blank for thef ornament c,fig. 4, is slipped onto the link, the depth to which thc link enters-themortise constituting a convenient gauge to determine its position, andthe remaining portion ot' the link is entered into the lmortise of theother holder. The

holders, with the link and the blank for the ornament being as shown atg. 3, are then placed in their proper position in the bed-block, iig. 1,and the clampscrews C are set up. The bottom edge oi`-the blank for theornament rests upon the top surface ofl the beddie a, as seen at fig. 2.The compressingfdies d d, operated by the other set ot clamprscrews, aremade to bear against the ends ot' the blank, as seen at figs. 1 and'2.The blank so clamped, in connection 'with the link to -which it is to beattached, is placed under;- t-he plunger F of a power press, and swaged.Its exterior outline will be determined by the shape of the several dieswhich, in combination with the plunger, act to form it, and, at the sametime, it will, by compression, be made to gripe the link so firmly as.to become mechanically attached thereto.

It will be well to punch thelink with a slit or hole-, wholly orpartially through it, at the point where the ornament is to be applied,(and the drawing so repre'- sents the link as made,) the purpose ofwhich is to enable the metal of the blank, by the swaging operation, tobe crowded into the opening in the lyipk, to absolutely insure itsremaining fixed in its position.

Heretofore ornamental attachments of the character described haveusually -been secured iiJ place by the aid of solder, after whichoperation the link requires to be cleaned and polished, the ornamentitself beingr formed by a separate operation. By the use of the devicesdescribed, no solder is required, and the ornament can be applied tothelink after the latter has been otherwise ljuishcd, and with greatadvantage in economy of labor and excellence of workmanship, it beingformed into shape and secured in place by one sin gle operation.

I `do not claim, broadly, a bed-dic, a punch, and A compressing-dies, incombination with an interior forming-die block,77 as such iscomprehended by the claim 'in the Letters Patent granted to me February26, 1865, and'reissued to my assignee March 1, 1870; but

What I claim as my'invention, and desire to secure by Letters Patent,is-` 'lhe improvement in the devices fof attachingomaments tochain-links, which 'consists of', the movable mortised link-holders EE', compressing-dies d d, bedde a, and plunger F, all in combination andoperating to swage and attach the ornament to the chain-link,

substantially as described.

' vVIRGIL DRAPER.

Witnesses:

EDWARD C. AMES, PETER F. HUGHES.

